How many BlackBerries does one person need? Well Washington, DC mayor Adrian Fenty has three devices on him. Fenty is known to be a BlackBerry addict, recently he was spotted sporting the three devices (a 8800, Curve and 8700). You may wonder why he has so many devices? Well Fenty has one for his mayoral duties, one for personal stuff and one for the city's Police Chief to get in direct contact with him. What a popular guy.